Barrel assembly for improving granulation and compaction of powder of large rotary kiln

Abstract

The utility model discloses a barrel component for improving granulation and compaction of powder of a large rotary kiln, which comprises a barrel, a plurality of partition plates are arranged in the barrel at intervals along the length direction, a material through hole is arranged in the middle of each partition plate, and each partition plate is integrally in a circular ring shape and comprises a main body part and a main discharge part. The main discharging part comprises a front inclined plate and a rear inclined plate which are obliquely arranged in parallel, the front inclined plate and the rear inclined plate are connected with one end of the disconnection section respectively, the tail end of the rear inclined plate is connected with a transition plate, the transition plate is integrally triangular, the inner side edge of the transition plate is in an arc shape, and the outer inclined edge of the transition plate is connected with the back face of the partition plate through a vertically-arranged sealing plate. According to the utility model, by controlling the segmented temperature, the material accumulation height, the stirring strength, the retention time and the like, the uniformity and the tap density of powder can be improved, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of rotary kiln equipment technology, and in particular to a cylinder component for improving the granulation and compaction of powder in large rotary kilns. Background Technology

[0002] Rotary kilns are indispensable equipment in many industrial production processes, such as the production of ultrafine petroleum coke powder. To improve production efficiency, traditional single-stage powder granulation equipment can be replaced with continuous rotary kiln equipment, thereby increasing product capacity.

[0003] The existing methods for advancing powder in rotary kilns include: moving forward, the powder rising under the rotation of the rotary kiln, and tumbling downwards. Because the kiln has a certain inclination (generally 3~4%), the powder can tumble forward. However, the powder moves directly downwards along the cylinder and is in a continuous flow state, which cannot guarantee the uniformity of powder granulation and the compaction density, which may lead to defects in product quality. Summary of the Invention

[0004] The purpose of this invention is to provide a cylinder assembly that improves the granulation and compaction of powder in large rotary kilns, solving the technical problem of insufficient uniformity and compaction density of powder during feeding in existing rotary kilns.

[0005] This application discloses a cylindrical assembly for improving the granulation and compaction of powder in a large rotary kiln. The assembly includes a cylindrical body with multiple baffles spaced along its length inside. Each baffle has a material passage hole in its center. The baffles are generally annular and include a main body and a main discharge section. The main body is an annular plate with a break section around its circumference. The main discharge section includes a front inclined plate and a rear inclined plate arranged in parallel and inclined. The front and rear inclined plates are respectively connected to one end of the break section. A transition plate is connected to the end of the rear inclined plate. The transition plate is generally triangular with an arc-shaped inner side. The outer inclined side of the transition plate is connected to the back of the baffle by a vertically arranged sealing plate.

[0006] This invention utilizes multiple partitions to divide the cylinder into several independent compartments. The central passage of each partition serves as both a discharge and exhaust channel. Within each independent compartment, the powder undergoes mixing, stirring, heating, and a period of residence. Once a compartment is full, it flows through the main discharge section into the next independent compartment. A transition plate in the main discharge section, corresponding to the partitions and the main body, forms a throwing device on the back of the partitions. This ensures that the material entering the next independent compartment is rotated 90° by the cylinder before being ejected from a higher position. This allows the material in each independent compartment to accumulate to a certain height, extending the residence time and resulting in a more complete reaction and improved granulation. The material follows this pattern to enter subsequent independent compartments. Each independent compartment can be set with a different temperature to further enhance the granulation effect. In summary, this invention, a cylinder component for improving powder granulation and compaction in large rotary kilns, effectively increases powder accumulation height and residence time. It also allows for zoned temperature settings, ensuring powder uniformity and compaction density, thus guaranteeing product quality.

[0007] As a further improvement of this utility model, the feed passage is circumferentially surrounded by discharge notches, and front guide vanes and rear guide vanes are respectively arranged on both sides of the discharge notches. The front guide vanes and rear guide vanes are arranged at an angle and parallel to each other. The arrangement of the front guide vanes and rear guide vanes forms an auxiliary discharge channel, which can effectively prevent semi-fluid materials from accumulating and clogging at the feed passage, so that the materials can be uniformly and quickly introduced into the next stage compartment.

[0008] As a further improvement of this utility model, the front guide vane and the rear guide vane are integrally formed with the partition plate, which has a simple structure and low manufacturing cost.

[0009] As a further improvement of this utility model, a connecting plate is provided at the end of the front inclined plate, and the connecting plate is vertically connected to the front of the partition plate by a connecting column, thereby improving the structural stability.

[0010] As a further improvement of this utility model, expansion joints are evenly spaced around the outer perimeter of the partition. Since the cylinder will be heated during operation, the partition will deform due to thermal expansion. The expansion joints added around the partition are used to absorb the excess thermal deformation and further ensure the stability of the structure.

[0011] As a further improvement of this utility model, the centers of the material passage holes are on the same straight line, which facilitates the processing and assembly of the partition and the orderly advancement of materials in each level of the compartment.

[0012] As a further improvement of this utility model, the independent compartment is used to connect and receive flue gas at different temperatures, so as to meet the temperature setting requirements of each compartment and improve the reaction effect. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a specific embodiment of the present utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the front structure of the partition plate;

[0016] Figure 3 for Figure 1 Schematic diagram of the structure on the back of the partition plate;

[0017] Figure 4 for Figure 1 A three-dimensional schematic diagram of the front structure of the partition plate;

[0018] Figure 5 for Figure 1 3D schematic diagram of the back structure of the partition plate;

[0019] Figure label:

[0020] 1-Cylinder body; 2-Baffle plate; 201 Main body; 202 Main discharge section; 202A Front inclined plate; 202B Rear inclined plate; 202C Transition plate; 202D Sealing plate; 202E Connecting plate; 202F Connecting column; 3-Independent compartment; 4-Passing hole; 5-Expansion joint; 6 Front guide vane; 7 Rear guide vane. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In addition, "front" and "back", "forward" and "rear" are defined according to the direction of material movement in the cylinder, and the position closer to the center of the partition is defined as "inner" and the position farther from the center of the partition is defined as "outer". The above definitions are only for the convenience of description.

[0025] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figure 1 As shown, the cylindrical assembly for improving the granulation and compaction of powder in a large rotary kiln in this embodiment includes a cylindrical body 1. Multiple partitions 2 are spaced apart along the length of the cylindrical body 1. The partitions 2 divide the cylindrical body 1 into multiple independent compartments 3. A material passage hole 4 is provided in the middle of the partition 2.

[0027] In this embodiment, the cylinder 1 is an existing cylinder. Compared with the existing inclined cylinder, multiple partitions 2 are arranged at intervals inside the cylinder 1 to separate and form independent chambers (i.e., independent compartments 3). This allows the temperature and residence time in different chambers to be controlled according to process requirements. At the same time, because the powder will stay and accumulate for a period of time, the powder can be compacted during the rotation of the cylinder, ensuring the granulation effect of the powder.

[0028] In this embodiment, during the conveying process, the powder accumulates to a certain height before entering the next chamber through the feed hole 4. Therefore, the preferred solution of this application is to set the centers of the feed holes 4 on the same straight line to ensure the uniformity of the powder height in each independent compartment 3. According to process requirements, the temperature in each independent compartment is different. The independent compartment 3 is used to connect and receive flue gas at different temperatures; specifically, it is used to connect the flue gas in the corresponding external heating hood. This allows for temperature regulation of the independent compartments to meet processing requirements.

[0029] In this embodiment, the cylinder 1 operates in a heated environment, so the partition 2 will expand to a certain extent when heated. Therefore, this application provides multiple expansion joints 5 in the circumferential direction of the partition 2. Furthermore, the expansion joints 5 are evenly distributed to ensure the stability of the partition 2 after assembly.

[0030] like Figure 2-5 As shown, the partition 2 is generally annular, comprising a main body 201 and a main discharge section 202. The main body 201 is an annular plate with a break section around its circumference. The main discharge section 202 includes a front inclined plate 202A and a rear inclined plate 202B arranged at inclinations parallel to each other. The inclination direction of the front inclined plate 202A and the rear inclined plate 202B is the same as the rotation direction of the cylinder 1. The front inclined plate 202A and the rear inclined plate 202B are respectively connected to one end of the break section. A transition plate 202C is connected to the end of the rear inclined plate 202B. The transition plate 202C is generally triangular with an arc-shaped inner side. The outer inclined side of the transition plate 202C is connected to the back of the partition 2 by a vertically arranged sealing plate 202D. During the rotation of the cylinder 1, a main discharge channel is formed between the front inclined plate 202A and the rear inclined plate 202B, facilitating the material to enter the next level of independent compartment 3 from the current level of independent compartment 3, so that the material can be pushed forward in an orderly manner between the various levels of independent compartment 3. The transition plate 202C, along with the corresponding portions of the partition plate 2 and the main body 201, forms a material throwing device on the back side of the partition plate 2. This ensures that the material entering the next independent compartment 3 is rotated 90° by the cylinder 1 before being thrown out from a high position. Consequently, the material in each independent compartment 3 can accumulate to a certain height, extending the residence time of the material in the compartment 3, resulting in a more complete reaction and improved granulation effect. A connecting plate 202E is provided at the end of the front inclined plate 202A. The connecting plate 202E is vertically connected to the front of the partition plate 2 via a connecting column 202F, improving structural stability.

[0031] Furthermore, the feed passage 4 is circumferentially surrounded by discharge notches, with a front guide vane 6 and a rear guide vane 7 respectively positioned on either side of the discharge notch. The front guide vane 6 and the rear guide vane 7 are arranged at an angle and parallel to each other. The arrangement of the front guide vane 6 and the rear guide vane 7 forms an auxiliary discharge channel, which can effectively prevent semi-fluid materials from accumulating and clogging at the feed passage 4, allowing the material to be uniformly and quickly introduced into the next stage independent compartment 3. The front guide vane 6 and the rear guide vane 7 are integrally formed with the partition plate 2, resulting in a simple structure and low manufacturing cost.

[0032] In summary, the cylinder 1 component of this embodiment, which improves the granulation and compaction of powder in a large rotary kiln, can improve the uniformity and compaction density of the powder by controlling the segmented temperature, the height of the material accumulation, the stirring intensity, and the residence time, thereby ensuring the quality of the product.

[0033] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A cylinder assembly for improving the granulation and tamping of powder in a large rotary kiln, characterized in that, The application relates to a cylinder body, which is provided with a plurality of partition plates in the length direction, the middle part of the partition plate is provided with a material passing hole, the partition plate is in a whole circular ring shape, and the partition plate comprises a main body part and a main discharging part; the main body part is a circular ring plate with a disconnected section on the circumference; the main discharging part comprises front and rear inclined plates which are arranged in parallel; the front and rear inclined plates are connected with one end of the disconnected section respectively; the rear inclined plate is connected with a transition plate at the end; the transition plate is in a whole triangular shape and the inner side is in a circular arc shape; the outer inclined edge of the transition plate is connected with the back of the partition plate through a vertical sealing plate.

2. The cartridge assembly of claim 1, wherein, The material passing hole is circumferentially provided with a discharging gap, and the two sides of the discharging gap are respectively provided with front and rear guide vanes which are arranged in parallel.

3. The cartridge assembly of claim 2, wherein, The front and rear guide vanes are integrally formed with the partition plate.

4. The cartridge assembly of claim 1, wherein, The end of the front inclined plate is provided with a connecting plate, and the connecting plate is vertically connected with the front of the partition plate through a connecting column.

5. The cartridge assembly of claim 1, wherein, Expansion joints are uniformly and evenly arranged on the outer circumference of the partition plate.

6. The cartridge assembly of any one of claims 1-5, wherein, The center of the material passing hole is on the same straight line.

Images